3D7314D-30中文资料
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MONOLITHIC QUADRUPLE FIXED DELAY LINE (SERIES 3D7314)FEATURES• All-silicon, low-power CMOS technology • TTL/CMOS compatible inputs and outputs •Vapor phase, IR and wave solderable • Auto-insertable (DIP pkg.) • Low ground bounce noise• Leading- and trailing-edge accuracy • Delay range: 10 through 500ns • Delay tolerance: 2% or 1.0ns• Temperature stability: ±1% typical (0C-70C) • Vdd stability: ±1% typical (4.75V-5.25V)• Minimum input pulse width: 20% of total delay • Static Idd: 1.3ma typical• Minimum input pulse width: 25% of total delayFUNCTIONAL DESCRIPTIONThe 3D7314 Quadruple Delay Line product family consists of fixed-delay CMOS integrated circuits. Each package contains four matched, independent delay lines. Delay values can range from 10ns through 500ns. The input is reproduced at the output without inversion, shifted in time as per the user-specified dash number. The 3D7314 is TTL- and CMOS-compatible, capable of driving ten 74LS-type loads, and features both rising- and falling-edge accuracy.The all-CMOS 3D7314 integrated circuit has been designed as a reliable, economic alternative to hybrid TTL fixed delay lines. It is offered in a standard 14-pin auto-insertable DIP and a space saving surface mount 14-pin SOIC.PACKAGES1413121110981234567I1N/C I2I3I4N/C GNDVDD N/C O1 N/C O2 O3 O43D7314-xx DIP3D7314G-xx Gull-Wing1234567141312111098I1 N/C I2 I3 I4 N/C GND VDD N/C O1 N/C O2 O3 O43D7314D-xxSOIC (150 Mil)PIN DESCRIPTIONSI1 Delay Line 1 Input I2 Delay Line 2 Input I3 Delay Line 3 Input I4 Delay Line 4 Input O1 Delay Line 1 Output O2 Delay Line 2 Output O3 Delay Line 3 Output O4 Delay Line 4 Output VDD +5 Volts GND Ground N/C No ConnectionTABLE 1: PART NUMBER SPECIFICATIONSPART NUMBER DELAYINPUT RESTRICTIONSDIP-14 3D7314 DIP-14 3D7314G SOIC-14 3D7314D PER LINE (ns) Max OperatingFrequencyAbsolute Max Oper. Freq. Min Operating Pulse Width Absolute MinOper. P.W.-10 -10 -10 10 ± 1.0 33.3 MHz 100.0 MHz 15.0 ns 5.0 ns -15 -15 -15 15 ± 1.0 22.2 MHz 100.0 MHz 22.5 ns 5.0 ns -20 -20 -20 20 ± 1.0 16.7 MHz 100.0 MHz 30.0 ns 5.0 ns -25 -25 -25 25 ± 1.0 13.3 MHz 83.3 MHz 37.5 ns 6.0 ns -30 -30 -30 30 ± 1.0 11.1 MHz 71.4 MHz 45.0 ns 7.0 ns -40 -40 -40 40 ± 1.0 8.33 MHz 62.5 MHz 60.0 ns 8.0 ns -50 -50 -50 50 ± 1.0 6.67 MHz 50.0 MHz 75.0 ns 10.0 ns -100 -100 -100 100 ± 2.0 3.33 MHz 25.0 MHz 150.0 ns 20.0 ns -200 -200 -200 200 ± 4.0 1.67 MHz 12.5 MHz 300.0 ns 40.0 ns -300 -300 -300 300 ± 6.0 1.11 MHz 8.33 MHz 450.0 ns 60.0 ns -400 -400 -400 400 ± 8.0 0.83 MHz 6.25 MHz 600.0 ns 80.0 ns -500 -500 -500 500 ± 10.00.67 MHz5.00 MHz 750.0 ns100.0 nsNOTES: Any delay between 10 and 500 ns not shown is also available.2003 Data Delay DevicesAPPLICATION NOTESOPERATIONAL DESCRIPTIONThe 3D7314 quadruple delay line architecture is shown in Figure 1. The individual delay lines are composed of a number of delay cells connected in series. Each delay line produces at its output a replica of the signal present at its input, shifted in time. The delay lines are matched and share the same compensation signals, which minimizes line-to-line delay deviations over temperature and supply voltage variations.INPUT SIGNAL CHARACTERISTICSThe Frequency and/or Pulse Width (high or low) of operation may adversely impact the specified delay accuracy of the particular device. The reasons for the dependency of the output delay accuracy on the input signal characteristics are varied and complex. Therefore a Maximum and an Absolute Maximum operating inputfrequency and a Minimum and an Absolute Minimum operating pulse width have been specified.OPERATING FREQUENCYThe Absolute Maximum Operating Frequency specification, tabulated in Table 1, determines the highest frequency of the delay line input signal that can be reproduced, shifted in time at the device output, with acceptable duty cycle distortion.The Maximum Operating Frequencyspecification determines the highest frequency of the delay line input signal for which the output delay accuracy is guaranteed.To guarantee the Table 1 delay accuracy for input frequencies higher than the Maximum Operating Frequency , the 3D7314 must be tested at the user operating frequency.Therefore, to facilitate production and device identification, the part number will include a custom reference designator identifying the intended frequency of operation. Theprogrammed delay accuracy of the device is guaranteed, therefore, only at the user specified input frequency. Small input frequency variation about the selected frequency will only marginally impact the programmed delay accuracy, if at all. Nevertheless, it is strongly recommended that the engineering staff at DATA DELAY DEVICES be consulted.OPERATING PULSE WIDTHThe Absolute Minimum Operating Pulse Width (high or low) specification, tabulated in Table 1, determines the smallest Pulse Width of the delay line input signal that can bereproduced, shifted in time at the device output, with acceptable pulse width distortion.The Minimum Operating Pulse Width (high or low) specification determines the smallest Pulse Width of the delay line input signal for which the output delay accuracy tabulated in Table 1 is guaranteed.To guarantee the Table 1 delay accuracy for input pulse width smaller than the Minimum Operating Pulse Width , the 3D7314 must be tested at the user operating pulse width. Therefore, to facilitate production and device identification, the part number will include aO1I1 O2I2O3I3O4I4Temp & VDD Compensation VDDGND Figure 1: 3D7314 Functional DiagramDelay Line Delay Line Delay Line Delay LineAPPLICATION NOTES (CONT’D)custom reference designator identifying the intended frequency and duty cycle of operation. The programmed delay accuracy of the device is guaranteed, therefore, only for the user specified input characteristics. Small input pulse width variation about the selected pulse width will only marginally impact the programmed delay accuracy, if at all. Nevertheless, it is strongly recommended that the engineering staff at DATA DELAY DEVICES be consulted. POWER SUPPLY AND TEMPERATURE CONSIDERATIONS The delay of CMOS integrated circuits is strongly dependent on power supply and temperature. The monolithic 3D7304 programmable delay line utilizes novel and innovative compensation circuitry to minimize the delay variations induced by fluctuations in power supply and/or temperature.The thermal coefficient is reduced to 200 PPM/C, which is equivalent to a variation , over the 0C-70C operating range, of ±1% from the room-temperature delay settings and/or 0.5ns, whichever is greater. The power supply coefficient is reduced, over the 4.75V-5.25V operating range, to ±1% of the delay settings at the nominal 5.0VDC power supply and/or 1.0ns, whichever is greater. It is essential that the power supply pin be adequately bypassed and filtered. In addition, the power bus should be of as low an impedance construction as possible. Power planes are preferred.DEVICE SPECIFICATIONSTABLE 2: ABSOLUTE MAXIMUM RATINGSPARAMETER SYMBOL MIN MAXUNITSNOTES DC Supply Voltage V DD -0.3 7.0 VInput Pin Voltage V IN -0.3V DD+0.3 VInput Pin Current I IN -1.0 1.0 mA25C Storage Temperature T STRG -55 150 CLead Temperature T LEAD300 C10secTABLE 3: DC ELECTRICAL CHARACTERISTICS(0C to 70C, 4.75V to 5.25V)PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Static Supply Current* I DD 1.32.0mAV DD = 3.6V High Level Input Voltage V IH 2.0 VLow Level Input Voltage V IL0.8V High Level Input Current I IH -0.1 0.0 0.1 µA V IH = V DDLow Level Input Current I IL -0.10.00.1 µA V IL = 0VHigh Level Output Current I OH-8.0-6.0mAV DD = 4.75VV OH = 2.4V Low Level Output Current I OL 6.0 7.5 mAV DD = 4.75VV OL = 0.4V Output Rise & Fall Time T R & T F 2 ns C LD = 5 pf*I DD(Dynamic) = 4 * C LD * V DD * F Input Capacitance = 10 pf typical where: C LD = Average capacitance load/line (pf) Output Load Capacitance (C LD) = 25 pf maxF = Input frequency (GHz)SILICON DELAY LINE AUTOMATED TESTINGTEST CONDITIONSINPUT: OUTPUT:Ambient Temperature: 25o C ± 3oC R load : 10K Ω ± 10%Supply Voltage (Vcc): 5.0V ± 0.1V C load : 5pf± 10% Input Pulse: High = 3.0V ± 0.1V Threshold: 1.5V (Rising & Falling) Low = 0.0V ± 0.1V Source Impedance: 50Ω Max. 10K Ω470Ω5pfDevice Under Test Digital Scope Rise/Fall Time: 3.0 ns Max. (measuredbetween 0.6V and 2.4V ) Pulse Width: PW IN = 1.25 x Total DelayPeriod: PER IN = 2.5 x Total DelayNOTE: The above conditions are for test only and do not in any way restrict the operation of the device.Figure 2: Test SetupFigure 3: Timing Diagramt PLHt PHLPER INPW INt RISEt FALL0.6V0.6V1.5V 1.5V2.4V 2.4V 1.5V1.5VV IHV ILV OHV OLINPUT SIGNALOUTPUT SIGNAL。
